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