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