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