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