One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,5,6)(3,7,4,8)(9,10)(11,16)(12,14)(13,15)(17,18)(19,24)(20,28)(21,26)(22,31)(23,27)(25,29)(30,32)(2,6)(7,8)(11,12)(14,16)(17,19,23,22)(18,24,27,31)(20,29,30,26)(21,28,25,32)(1,3,5,4)(2,7,6,8)(9,11,13,12)(10,14,15,16)(17,20,22,29,23,30,19,26)(18,25,24,28,27,21,31,32)(9,12,13,11)(10,14,15,16)(17,21)(18,26)(19,28)(20,24)(22,32)(23,25)(27,29)(30,31)(1,4,5,3)(2,8,6,7)(10,15)(14,16)(18,27)(21,25)(24,31)(28,32)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.