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