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