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