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