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