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