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)(34,39)(36,47)(37,49)(40,53)(41,58)(42,54)(43,59)(44,62)(45,61)(48,51)(50,52)(55,57)(56,60)(63,64)(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)(33,34,38,42)(35,40,46,57)(36,48,50,58)(37,51,49,41)(39,52,54,47)(43,60,44,63)(45,64,61,56)(53,59,55,62)(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)(34,40)(36,44)(37,45)(38,46)(39,53)(41,56)(42,57)(43,50)(47,62)(48,63)(49,61)(51,64)(52,59)(54,55)(58,60)(3,15)(8,23)(13,24)(14,29)(16,17)(22,28)(27,32)(30,31)(33,36,49,52,38,50,37,47)(34,39,51,58,42,54,41,48)(35,43,61,62,46,44,45,59)(40,55,64,63,57,53,56,60)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.