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