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