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