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