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