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