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