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