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