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