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