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