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