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