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