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