One vertex per element, one color per generator, with an edge from x to x·s.
(2,6)(3,4)(7,8)(9,10,16,22)(11,17,26,43)(12,27,32,63)(13,33,38,51)(14,21,15,20)(18,44,48,29)(19,36,52,37)(23,54,56,72)(24,57,34,66)(25,53,39,42)(28,61,60,70)(30,50,31,62)(35,46,65,47)(40,68,69,55)(41,67,49,59)(45,58,71,64)(1,2,5,8)(3,7,4,6)(9,11)(10,17)(12,28)(13,34)(14,39)(15,25)(16,26)(18,45)(19,49)(20,53)(21,42)(22,43)(23,30)(24,38)(27,61)(29,64)(31,56)(32,60)(33,66)(35,55)(36,59)(37,67)(40,46)(41,52)(44,58)(47,69)(48,71)(50,54)(51,57)(62,72)(63,70)(65,68)(2,6)(3,4)(7,8)(9,12,16,32)(10,18,22,48)(11,23,26,56)(13,35,38,65)(14,31,15,30)(17,40,43,69)(19,50,52,62)(20,47,21,46)(24,58,34,64)(25,60,39,28)(27,51,63,33)(29,36,44,37)(41,70,49,61)(42,71,53,45)(54,66,72,57)(55,67,68,59)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.