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