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