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