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