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