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