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