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