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