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