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