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