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