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