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