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