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