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