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)(8,22,25,32,26,31,24,13)(18,33,34,36,35,27,23,30)(1,3,4,2)(5,7)(6,12)(8,23,26,34)(9,20)(10,19)(11,21)(13,30,32,36)(14,28)(15,17)(16,29)(18,25,35,24)(22,27,31,33)(2,3)(5,8,9,25,11,26,10,24)(6,13,14,22,16,32,15,31)(7,18,19,34,21,35,20,23)(12,27,17,30,29,33,28,36)(6,14)(8,24)(9,10)(12,28)(15,16)(17,29)(18,23)(19,20)(22,31)(25,26)(27,33)(34,35) 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.