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