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