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