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