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