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