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