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