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