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