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