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