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