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