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