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