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