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