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