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