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