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)(19,27,21,24)(20,26,31,22)(28,32,30,29)(33,34)(35,42)(36,37)(38,40)(39,43)(41,48)(44,45)(46,47)(1,3)(2,7)(4,12)(5,13)(6,11)(8,10)(9,16)(14,15)(17,19,23,21)(18,24,25,27)(20,30,31,28)(22,29,26,32)(33,35,39,38)(34,40,43,42)(36,46,41,44)(37,45,48,47)(3,11)(7,8)(12,16)(13,14)(18,25)(20,31)(24,27)(28,30)(33,36,39,41)(34,37,43,48)(35,44,38,46)(40,47,42,45)(1,3)(2,8)(4,12)(5,14)(6,11)(7,10)(9,16)(13,15)(17,20,23,31)(18,26,25,22)(19,28,21,30)(24,29,27,32)(33,37)(34,41)(35,45)(36,43)(38,47)(39,48)(40,44)(42,46)(1,4)(2,5)(3,12)(6,9)(7,13)(8,14)(10,15)(11,16)(17,21,23,19)(18,27,25,24)(20,30,31,28)(22,29,26,32)(33,35,39,38)(34,42,43,40)(36,44,41,46)(37,45,48,47)(1,5)(2,9)(3,13)(4,10)(6,15)(7,16)(8,12)(11,14)(17,22,23,26)(18,20,25,31)(19,29,21,32)(24,30,27,28)(33,38,39,35)(34,40,43,42)(36,46,41,44)(37,47,48,45)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.