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