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