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