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