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