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