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