One vertex per element, one color per generator, with an edge from x to x·s.
(2,5)(3,4)(10,12)(14,16)(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)(1,2,6,5)(3,8,4,7)(11,15)(14,16)(19,30)(20,26)(21,25)(24,29)(33,44)(35,42)(36,41)(39,43)(1,3,6,4)(2,7,5,8)(9,10,13,12)(11,14,15,16)(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)(1,4,6,3)(2,8,5,7)(9,11,13,15)(10,14,12,16)(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)(1,5,6,2)(3,8,4,7)(9,12,13,10)(11,16,15,14)(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.