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