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