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