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