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