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