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