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