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