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