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