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