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