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