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