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