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