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