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