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