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