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