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