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