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)(19,25,30,32)(20,31,29,24)(22,26,28,27)(2,6)(7,8)(9,10)(11,14)(12,13)(15,16)(17,19,28,20,23,30,22,29)(18,24,26,32,21,31,27,25)(1,3,5,4)(2,7,6,8)(10,13)(14,16)(17,20,22,19,23,29,28,30)(18,25,27,31,21,32,26,24)(1,4,5,3)(2,8,6,7)(9,11)(10,14)(12,15)(13,16)(17,21,23,18)(19,24,30,31)(20,32,29,25)(22,26,28,27)(11,15)(14,16)(17,22,23,28)(18,26,21,27)(19,29,30,20)(24,32,31,25)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.