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