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