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