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