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