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