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