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