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