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