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