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