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