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