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