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