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