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