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