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