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