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