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