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