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