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