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