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