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