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