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