Jungle as a darius is quite easy, believe it or not... You simply get Blue then wolf into wraiths, Red, then golems.. Like and jungler... This build for darius Jungle gives him great Movement speed and great ganks, despise he only has a pull and slow... This is a great build, I have tried it and its worked very well!

Trade his Wriggles for a Last whisper late game after your build is completed... Or the enemy isnt hurting you bad enough to were you need your Guardian right when you get to it.

This is just a basic build for darius... I usally do not buyt he dorans blade... But it is added incase you are having problems with the top person you are facing and need some early dmmg or lifesteal... Build 1/2 give around the same AR and MR, but build one gives you more speed and more armor pen. while staying survivable... Giving you a strong advantage... Build 2 Give your more life, but also reduces your mobility and armor pen. but increasing your over all Attack Damage its self.. You decide which build works for you!