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