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