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