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