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