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