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