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