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