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