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