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