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