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