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