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