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