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