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