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)(33,34,38,43,39,42,37,50)(35,40,46,56,45,54,52,55)(36,47,48,41,49,58,51,57)(44,59,62,63,60,64,61,53)(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)(33,35,38,52,39,45,37,46)(34,40,50,56,42,54,43,55)(36,44,48,61,49,60,51,62)(41,53,47,59,57,63,58,64)(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)(34,41)(35,44)(37,51)(38,48)(39,49)(40,53)(42,57)(43,58)(45,60)(46,62)(47,50)(52,61)(54,63)(55,64)(56,59) 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)(34,42)(40,54)(41,57)(43,50)(47,58)(53,63)(55,56)(59,64)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.