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