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