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