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