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