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