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