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