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