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