They built the new theatre where the naked mole rat exhibit was. This exhibit is in the building where the nursery is. Tamandua exhibit is to the left of this. Nursery (no babies at the moment) takes up the rest of the building. I will ask about the colony.
There's not a lot that you can do to make these guys look naturalistic. I have seen them displayed vertically rather than horizontally in a more "natural" frame, but it still is basically a big ant farm type display.
In the wild what you see of them is a little mound like a volcano at the top of the burrow with dust flying out as they excavate.