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