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