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