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