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