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