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