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