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