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