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