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