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