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