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