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