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