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