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