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