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