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