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