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