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