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