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