One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,7,12)(3,13,18,24)(4,9,20,27)(5,11,6,10)(8,16,25,17)(14,29,32,23)(15,30,31,22)(19,28,21,26)(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)(1,3,7,18)(2,8,12,25)(4,14,20,32)(5,17,6,16)(9,22,27,30)(10,13,11,24)(15,21,31,19)(23,28,29,26)(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)(1,4)(2,9)(3,14)(5,21)(6,19)(7,20)(8,22)(10,28)(11,26)(12,27)(13,29)(15,16)(17,31)(18,32)(23,24)(25,30)(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)(1,4)(2,9)(3,15)(5,19)(6,21)(7,20)(8,23)(10,26)(11,28)(12,27)(13,30)(14,16)(17,32)(18,31)(22,24)(25,29) involution — undirected(1,5,7,6)(2,10,12,11)(3,16,18,17)(4,19,20,21)(8,24,25,13)(9,26,27,28)(14,31,32,15)(22,29,30,23)(34,41)(35,44)(40,55)(42,49)(43,58)(45,60)(46,56)(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.