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