It's a lot harder to kite as a melee jungler than as a ranged jungler, but Kha has some space on his primary jungling ability (his Q), so.
First things first, you start walking away from the camp as its attack animation starts. It will still hit you, but after that it has to walk back up to you to attack you again, which gives you time to blow your abilities before trading autos again (and from lv 2 on, using spike racks to heal).
Rinse repeat until clear (this works well for blue, red, and gromp. not so well for chickens and wolves).