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