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