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