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