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