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