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