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