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