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