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