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