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