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