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