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