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