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