One vertex per element, one color per generator, with an edge from x to x·s.
(1,2) involution — undirected(4,6)(9,13)(12,14)(15,16)(17,21)(18,19)(20,22)(24,25)(26,30) involution — undirected(8,11)(12,14)(16,19)(20,21)(23,24,27,25)(26,28,30,29)(3,4)(5,6)(7,8,10,11)(9,12,13,14)(15,16)(17,21)(18,19)(20,22)(23,25,27,24)(26,28,30,29)(7,9)(8,12)(10,13)(11,14)(15,17,18,22)(16,20,19,21)(23,26,27,30)(24,28,25,29)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.