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