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