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