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