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