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