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