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