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