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