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