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