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