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