One vertex per element, one color per generator, with an edge from x to x·s.
(2,4)(5,6)(7,15,18,28)(8,12)(9,13)(10,14)(11,17,25,22)(16,31,19,30)(20,26)(21,27)(23,29)(24,33,35,32)(34,36)(5,7)(6,11)(8,19)(9,22)(10,18)(12,24)(13,28)(14,25)(15,29)(16,21)(17,23)(20,32)(26,31)(27,35)(30,36)(33,34) involution — undirected(5,8,9,20,10,21,23,34)(6,12,13,26,14,27,29,36)(7,16,17,32,18,19,22,33)(11,24,15,30,25,35,28,31)(1,2,3,4)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.