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