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