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