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