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