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