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