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