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