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