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