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