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