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