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