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