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