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