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