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