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