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