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