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