One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,4,5)(3,6,7,8)(9,10,15,14)(11,12,13,16)(18,24)(19,25)(21,22)(26,27)(28,29)(31,32)(2,5)(6,8)(9,11,15,13)(10,16,14,12)(17,18,22,27,23,26,21,24)(19,20,25,32,29,30,28,31)(1,3,4,7)(2,6,5,8)(9,12,15,16)(10,11,14,13)(17,19,21,28,23,29,22,25)(18,20,24,31,26,30,27,32)(9,13,15,11)(10,16,14,12)(17,20,23,30)(18,25,26,28)(19,27,29,24)(21,31,22,32)(9,14,15,10)(11,12,13,16)(18,26)(20,30)(24,27)(31,32)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.