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)(21,22,26,28)(23,31,32,27)(24,29,34,36)(25,35,33,30)(1,2)(3,4)(5,6)(7,13)(8,12)(9,10)(11,15)(14,19)(16,17)(18,20)(21,23,26,32)(22,27,28,31)(24,25,34,33)(29,30,36,35)(6,10)(11,13)(12,17)(18,19)(22,28)(23,32)(24,34)(30,35) involution — undirected(5,7)(6,11)(8,14)(9,15)(10,13)(12,18)(16,20)(17,19)(21,24,26,34)(22,29,28,36)(23,33,32,25)(27,35,31,30)(5,6)(7,11)(8,12)(9,10)(13,15)(14,18)(16,17)(19,20)(21,22)(23,27)(24,29)(25,30)(26,28)(31,32)(33,35)(34,36) involution — undirected(5,8,9,16)(6,12,10,17)(7,14,15,20)(11,18,13,19)(21,25,26,33)(22,30,28,35)(23,34,32,24)(27,36,31,29)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.