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