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