This is really a question of whether or not you prefer an aquatic or terrestrial setup.
For an aquatic setup I prefer to go with about 6-10 inches of water with lots of rocks protruding the water's surface.
For a terrestrial setup you could just go with a simple substrate of coco fiber, leaf debris, a water dish, and a couple hides.
This is one of those species where you have endless possibilities on how to arrange the tank , it basically boils down to what you think is asthetically pleasing.