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