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