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