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