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