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