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