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