Normally i takeandto jungle, but if you dont want to jungle there are some alternatives.
Can be a good addition to your basic movementspeed and your ulti so you get to something like 600 movement speed for about 10 seconds, but in my opinion not necessary.A good skill if you're using it everytime someone is ss or to find junglers.A good skill to reduce damage and slow the enemy. A very good skill in any way, but in the end-game not necessary, because you nuke everyone in a second.Can be useful in the early game, but in the mid to end game you wont need it anymore. If you're gettin blue buff then its not necessary even in the early game.A good escaping skill, but you allready got your ultimate and your Shadow Walk, so most of the time you wont need it.Can be useful in the early/mid game, but you wont need it in the end-game.A skill for supporters and tanks.... your fights move to much and are finished too fast to take advantage of this skill.Helps defending a Lane, but with your movement speed you wont need it.Ok.... removing all crowd control effects from you can be useful. But normally youre dead when youre focused, so its not that useful.Again a skill for supporters and tanks. It doesnt deals damage or increases your survivability, so its not very useful for you at the end. Leave this spell for the tanks and supporters.CAN be useful, but only, if you want to get the Blue Buff at the very beginning. You just let yourself get killed by a creep and then revive and do the golem, but its not good for any other thing.

I prefer those runes, because with 35 ability power in the beginning (with dorans ring 50) you just nuke in the beginning and for my opinion its better then magic penetration, because with archaic knowledge you got enough magic penetration to nuke everyone (tanks not included). If you havent just go for a void staffand there it goes.

You wont need any more cooldown reduction, because the golem and your masteries grant you enough of it.

I prefer the Masterie i posted at the top, because it allows you to jungle, improves your damage, allows you to get lvl up after the two golems, without wasting one of your Quintessences and make your buffs last longer.

Alternatives i prefer are:
or

If you take the third Masterie you have to buy one Greater Quintessence of Wisdom to get lvl up after the two golems. This will increase your survivevability, but you have to spent one of your quintessences for lvl up, which is a waste in my opinion, because if the enemy is completely focusing you, you're dead anyway.

Pros:
-High damage even in the early game
-High ability to gank even in the early game
-Extreme Movement Speed

Cons:
-Squishy champ
-Vision Ward/Oracle's Elixir disables your best ability to gank or survive
-Hard to play against slowing or stunning champs at the beginning

I prefer this order, because with that you can nuke in the very beginning, because Ravage has a 100% ap rate. You need Hate Spike to farm in the beginning and to kill the two golems. Against other champs its a good addition to the damage but not the main part.

You might also max Hate Spike first instead of Ravage, but i prefer Ravage, because of the high damage output, while Hate Spike needs some time to reach the damage, that you deal with ravage.

I dont say that this is the best build to play Evelynn, but the one, i prefer at the moment.
I started Evelynn today but my build worked out good so far:
I dont jungle the whole time. Im just doin the two golems at the beginning so im reaching lvl 2 and am able to support my mate on his lane with Shadow Walk and Hate Spike to get the first blood. Its helpful to drink your healing potion while doing the golems so you survive more easy and have much hp when you get back on your lane. You got to Smite the Golem you're going to attack first and spam your Hate Spike.