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