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