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