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