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