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