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