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