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