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