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