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