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