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