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