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