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