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