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