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