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