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)(17,18,24,28)(19,31,34,46)(20,36,21,27)(22,30,23,29)(25,40,43,35)(26,39,44,38)(32,41,37,42)(33,47,48,45)(1,2)(3,9)(4,7)(5,8)(6,11)(10,15)(12,14)(13,16)(17,19)(18,25)(20,37)(21,32)(22,40)(23,35)(24,34)(26,42)(27,45)(28,43)(29,46)(30,31)(33,39)(36,47)(38,48)(41,44) involution — undirected(1,3,5,11)(2,6,8,9)(4,12,13,10)(7,15,16,14)(17,20)(18,26)(19,32)(21,24)(22,38)(23,39)(25,41)(27,30)(28,44)(29,36)(31,47)(33,40)(34,37)(35,48)(42,43)(45,46)(1,4,5,13)(2,7,8,16)(3,10,11,12)(6,14,9,15)(17,21,24,20)(18,27,28,36)(19,33,34,48)(22,38,23,39)(25,42,43,41)(26,29,44,30)(31,47,46,45)(32,35,37,40)(2,8)(6,9)(7,16)(14,15)(18,28)(19,34)(26,44)(27,36)(29,30)(32,37)(33,48)(35,40) 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.