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