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