Stay away from a literal translation.  If you like safari ...don't have a mural of an African safari painted on your wall.  Look to incorporate something slightly more subtle.  Add a cheetah print somewhere... don't go crazy with it.... be subtle.  Add colors that you might see in the safari , like the wood on your floor.... Add small items from your travels in a keepsake cabinet or on a table. 

This look will last much longer..... You can change it to another style much easier than draping walls with trees and wild animals...

This is a beautiful example.  The room's safari theme is clear but not exactly literal.