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