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