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