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