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