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)(17,18)(19,28)(20,30)(21,26)(22,32)(23,27)(24,25)(29,31)(2,5)(6,8)(9,11,15,13)(10,16,14,12)(17,19,21,29,23,30,22,25)(18,24,32,20,27,31,26,28)(1,3,4,7)(2,6,5,8)(9,12,15,16)(10,11,14,13)(17,20,22,24,23,28,21,31)(18,25,26,30,27,29,32,19)(9,13,15,11)(10,16,14,12)(17,21,23,22)(18,26,27,32)(19,29,30,25)(20,24,28,31)(9,14,15,10)(11,12,13,16)(17,21,23,22)(18,26,27,32)(19,25,30,29)(20,31,28,24)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.