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