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