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