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