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