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