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