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)(9,13)(10,12)(11,14)(15,16)(17,20)(18,21)(19,22)(23,30)(24,28)(25,27)(26,29)(7,9)(8,11)(10,14)(12,13)(15,17,18,24)(16,20,21,28)(19,23,26,25)(22,30,29,27)(4,6)(16,21)(17,23)(19,26)(20,27)(24,25)(28,30) involution — undirected(4,6)(8,12)(9,14) 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.