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