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