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