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