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