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