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