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