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