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