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