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