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