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)(15,16,19,23,20,24,17,21)(18,26,25,22,27,29,28,30)(3,4)(5,6)(7,9,11,8)(10,13,14,12)(15,17,20,19)(16,21,24,23)(18,25,27,28)(22,29,30,26)(4,6)(7,10,11,14)(8,12,9,13)(16,21)(17,19)(22,29)(23,24)(25,28)(26,30)(8,9)(12,13)(15,18,20,27)(16,22,24,30)(17,25,19,28)(21,29,23,26)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.