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