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