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