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