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