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