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