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