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