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