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