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