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