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