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