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