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