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