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