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