I got the idea for hybrid Diana after seeing a build with the title "Akali on mana" then i thought "since Akali is so good hybrid why not Diana?" after trying her both lane and jungle hybrid I settled to the conclusion "She's an amazing hybrid".

For runes I normaly use red AD runes but I would recomend AS since its good with her passive.

Diana is an amazing jungler so you dont even need to start with armor, so i prefer boots for early ganks and faster jungling. Later on when i reach the point of trinity I'm sometimes forced to buy bilgewater or gunblade first to increase survivability but if you have no problems with that, then just rush trinity and see the enemy team melt away.

I personaly go for a more utility kind of Diana when playing her hybrid therefore leveling Moonfall over Cresentstrike. Level Cresentstrike at lvl 2 for faster jungle or Moonfall for lvl 2 gank.

Let mid pull and activate your (W) when the buff starts attacking you. When that is finished go for an early gank or go for wolves then wraiths. After wraiths, and then over to red (your smite should be up by now) after red go for a gank or finish of you jungle route with golems. Repeat and remember to gank.

Endnote - at level 6 ganking with Diana almost garantees a kill unless you are champions with a dash or similar escape mechanism fighting Fizz. Kassadin. Leblanc, Tristana or Corki