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