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