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