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