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