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