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