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)(21,22,27,30)(23,31,34,36)(24,33,28,32)(25,29,26,35)(1,2)(3,4)(5,7)(6,11)(8,18)(9,16)(10,17)(12,13)(14,19)(15,20)(21,23,26,33,27,34,25,32)(22,28,29,31,30,24,35,36)(2,4)(5,7)(6,12)(8,16)(9,18)(10,17)(11,13)(14,20)(15,19)(21,24,27,28)(22,23,30,34)(25,36,26,31)(29,32,35,33)(5,8,10,9)(6,13,15,14)(7,16,17,18)(11,19,20,12)(21,25,27,26)(22,29,30,35)(23,32,34,33)(24,36,28,31)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.