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