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