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