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