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