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