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