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)(33,34,37,39)(35,43,45,58)(36,41,47,53)(38,51,50,42)(40,54,52,46)(44,59,48,62)(49,64,60,57)(55,63,56,61)(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)(34,39)(36,47)(40,52)(42,51)(43,58)(44,48)(49,60)(61,63)(1,4,6,5)(2,8,9,14)(3,11,13,12)(7,15,10,16)(19,25)(22,30)(26,28)(31,32)(33,35,38,46,37,45,50,54)(34,40,42,43,39,52,51,58)(36,48,49,63,47,44,60,61)(41,56,57,62,53,55,64,59)(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)(34,41)(35,44)(37,47)(38,49)(39,53)(40,55)(42,57)(43,59)(45,48)(46,61)(50,60)(51,64)(52,56)(54,63)(58,62)(1,5,6,4)(2,8,9,14)(3,12,13,11)(7,15,10,16)(19,25)(22,30)(26,28)(31,32)(34,39)(35,45)(36,47)(42,51)(46,54)(49,60)(55,56)(59,62)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.