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