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