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