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