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